minigbm: tegra: add blocklinear detiling logic

With CL:397941, hshi@ figured out how to detile blocklinear buffers
for tegra. Let's add that logic to our tegra map()/unmap() functions.
This can be useful for various tests.

BUG=chromium:673570
TEST=tiled_bo_test draws ellipse texture on Tegra (there are artifacts
     due another bug though)

Change-Id: I7c2e7222ba67457ffd3641ba42a775ac4a667ec8
Reviewed-on: https://chromium-review.googlesource.com/421279
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Haixia Shi <hshi@chromium.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drv_priv.h b/drv_priv.h
index d59b2d4..9b0e4da 100644
--- a/drv_priv.h
+++ b/drv_priv.h
@@ -46,6 +46,7 @@ struct map_info {
 	size_t length;
 	uint32_t handle;
 	int32_t refcount;
+	void *priv;
 };
 
 struct supported_combination {
@@ -67,6 +68,7 @@ struct backend
 	int (*bo_create)(struct bo *bo, uint32_t width, uint32_t height,
 			 uint32_t format, uint32_t flags);
 	void* (*bo_map)(struct bo *bo, struct map_info *data, size_t plane);
+	int (*bo_unmap)(struct bo *bo, struct map_info *data);
 	int (*bo_destroy)(struct bo *bo);
 	uint32_t (*resolve_format)(uint32_t format);
 	struct list_head combinations;